标题:
基于ESO-逆推法的非线性鲁棒励磁控制Nonlinear Robust Excitation Control Based on ESO-Backstepping Method
作者:
张之涵
关键字:
扩张状态观测器, 逆推法, 非线性, 励磁控制Extended State Observer (ESO); Back-Stepping Method; Nonlinear; Excitation Control
期刊名称:
《Smart Grid》, Vol.3 No.3, 2013-06-05
摘要:
本文提出了一种基于ESO和逆推法相结合的同步发电机非线性鲁棒励磁控制方法。通过构造ESO对模型不确定部分进行补偿，并保留了模型中有利于运用逆推法设计的非线性部分。利用逆推法对补偿后的系统进行严格的稳定控制律设计。整个系统的设计问题转化为若干低阶子系统的设计，逐步利用李亚普诺夫函数得到使整个系统渐进稳定的反馈控制律。通过仿真验证，该方法鲁棒性强，参数易于选取，具有良好的静、动态品质。In this paper, the nonlinear robust excitation control of synchronous generator based on the ESO and back- stepping method is proposed. The model uncertainties are compensated by constructed ESO, and the nonlinear parts of the model are retained for using back-stepping design method. Stability control of compensated system is designed us-ing the method of back-stepping. The whole system problem is resolved into low order subsystems design. A simulation case study has carried out on one single machine infinitive bus system by using the Matlab/Simulink software platform. The proposed method has strong robustness, its parameters are easy to select, and static and dynamic characteristics have been verified.